一種利用多站雷達(dá)距離差信息確定細(xì)柱狀目標(biāo)幾何中心及其長(zhǎng)度的新方法
A NEW METHOD FOR DETERMINING THE LOCATION AND LENGTH OF A THIN CYLINDRICAL TARGET WITH RANGE DIFFERENCE FROM A MULTISTATIC RADAR SYSTEM
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摘要: 本文討論一種基于距離差信息的調(diào)頻連續(xù)波(FMCW)T-R~4方式多基地雷達(dá)近程目標(biāo)定位系統(tǒng),提出了一種利用寬帶FMCW雷達(dá)信號(hào)的高距離分辨率特點(diǎn)及細(xì)柱狀目標(biāo)回波頻譜特性,來(lái)確定目標(biāo)幾何中心及其長(zhǎng)度的新方法,導(dǎo)出了與發(fā)射機(jī)位置無(wú)關(guān)的目標(biāo)定位及長(zhǎng)度估計(jì)算法公式,對(duì)系統(tǒng)性能進(jìn)行了分析并給出了計(jì)算機(jī)仿真結(jié)果。
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關(guān)鍵詞:
- 多基地雷達(dá); 目標(biāo)定位; 距離差; 調(diào)頻連續(xù)波
Abstract: This paper describes a short range target location system based on the range difference of T-R4 multistatic radar system with FMCW signal. A new method is proposed to determine the location and length of a thin cylindrical target making use of the high resolution of wide band FMCW signal and the spectrum characteristics of the target echo. Formulae are derived for target location and its length estimation being independent of the transmitter position. System performances are simulated with the proposed algorithm and the results are given for various situations -
Manolakis D E. Efficient solution and performance analysis of 3-D position estimation by trilateration. IEEE Trans. on AES, 1996, AES-32(4): 1239-1247.[2]孫仲慷，周一宇，何黎星著. 單多基地有源無(wú)源定位系統(tǒng). 北京: 國(guó)防工業(yè)出版社，1996, 143-160.[3]Schau H C, Robinson A Z. Passive source localization employing intersecting spherical surfaces from time-of-arrival differences. IEEE Trans. on ASSP, 1987, ASSP-35(8): 1223-1225. -
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